package edu.pku.sei.transformation.editor.controller.editparts.node;

import java.beans.PropertyChangeEvent;

import org.eclipse.draw2d.IFigure;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.editpolicies.DirectEditPolicy;

import edu.pku.sei.modeler.edit.parts.AbstractNodeEditPart;
import edu.pku.sei.modeler.model.structure.MetaShapeElement;
import edu.pku.sei.transformation.editor.controller.policies.NodeComponentEditPolicy;
import edu.pku.sei.transformation.editor.controller.policies.TransformationNodeEditPolicy;
import edu.pku.sei.transformation.editor.model.ModelPackage;
import edu.pku.sei.transformation.editor.model.goal.Description;
import edu.pku.sei.transformation.editor.views.figures.ConstraintFigure;

public class DescriptionEditpart extends AbstractNodeEditPart {

	public DescriptionEditpart(MetaShapeElement model) {
		super(model);
		// TODO Auto-generated constructor stub
	}

	@Override
	protected DirectEditPolicy createDirectEditPolicy() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	protected IFigure createFigure() {
		ConstraintFigure figure = new ConstraintFigure();
		Description d = (Description) getNode().getModelElement();
		figure.setHead("<<Describe>>");
		figure.setText(d.getContent());
		return figure;
	}
	
	@Override
	protected void createEditPolicies() {
		super.createEditPolicies();
		installEditPolicy(EditPolicy.GRAPHICAL_NODE_ROLE,
				new TransformationNodeEditPolicy());
		installEditPolicy(EditPolicy.COMPONENT_ROLE,
				new NodeComponentEditPolicy());
	}
	
	@Override
	protected void handlePropertyChanged(PropertyChangeEvent event) {
		String propertyName = event.getPropertyName();
		ConstraintFigure figure = (ConstraintFigure) getFigure();
		if (ModelPackage.DESCRIPTION_CONTENT.equals(propertyName)) {
			figure.setText(event.getNewValue().toString());
		} else {
			super.handlePropertyChanged(event);
		}
	}

}
